Board Thread:Traders' Board/@comment-31122670-20170822203324/@comment-32462922-20170822212100

well lets see for the mathmatical way it is this,

(percentage chance to find the fossilised egg)*(chance of togepi coming out of the egg)*(chance of it being a shiny) and it workes out to this,

0.01%*85%*0.0244140625%=2.07519531e-8 which is basically 0.000000207519531%

Please do note that I used the roaming pokemon chance as the egg spawn.That might not be right since I do not know the spawn rates of the eggs but I figured it would be close.